| 81. | The great racing driver, Sir Malcolm Campbell, was the first man to drive at over 300 miles per hour. |
| 杰出的赛车选手马尔科姆.坎贝尔爵士是第一个以每小时超过300英里的速度驾车的人。
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| 82. | Although Campbell reached a speed of over 304 miles per hour, he had great difficulty in controlling the car because a tyre burst during the first run. |
| 尽管坎贝尔达到了每小时超过304英里的速度，但他很难把汽车控制住，因为在开始的行程中爆了一只轮胎。
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| 83. | After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour. |
| 比赛结束后，坎贝尔非常失望地得知他的平均时速是299英里。
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| 84. | His average speed had been 301 miles per hour. |
| 他的平均时速实际是301英里。
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| 85. | The last note said: 'I am 100 per cent honest now!' |
| 最后的那张字条上写道：“我现在是一个100%的诚实人了！”
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| 86. | The shape and dimensions of the skyscrapers depend entirely on the necessity of obtaining the maximum income per square foot of ground, and of offering to the tenants offices and apartments that please them. |
| 摩天大楼完全是按这样的需要修建的：每平方英尺地皮取得最大收入和向租房人提供使他满意的办公室和住房。
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| 87. | Because the Moon has only an eightieth of the Earth's mass, it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit! |
| 因为月球的重只有地球的1/8，因此，从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。
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| 88. | To escape from the Earth in a rocket, one must travel at seven miles per second. |
| 要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，
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| 89. | The comparable speed from the Moon is only 1.5 miles per second. |
| 而从月球出发的相应速度史是每秒1.5英里。
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| 90. | Because the gravity on the Moon's surface is only a sixth of Earth's ( remember how easily the Apollo astronauts bounded along), it takes much less energy to accelerate to that 1.5 miles per second than it does on Earth. |
| 由于月球表面的重力仅是地球表面的1/6 -- 还记得阿波罗飞船中的宇航员累松地跳跃 -- 在月球上加速到每秒1.5英里比在地球上所用能源要少得多。
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